YHM is very pleased to offer the YHM-8510 it uses our SLR Smooth Mid-length handguard, chambered in 5.56mm, 6.8 SPC, or .300 BLK with many of our premium accessories built in. The S.L.R. handguard bridges the gap between the upper receiver and hand guard and is “T” Marked on the top rail. This handguard has threaded mounting holes at the 3, 6, and 9 o'clock positions for mounting our Customizable Rails. YHM's “L” pattern in the hand guard reduces weight and blends nicely with our diamond fluted barrels.